B2969

DTC Troubleshooting: B2969

DTC B2969:

Climate Control Unit Lost Communication with MICU (WIPSW message) (Driver's)

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in the B-CAN system diagnosis test mode A Troubleshooting - B-CAN System Diagnosis Test Mode A.

1. Clear the DTC with the HDS.

2. Turn the ignition switch to LOCK (0), and then back to ON (II), or press the engine start/stop button to select the OFF mode and then the ON mode.

3. Wait for at least 6 seconds.

4. Do the Self-Diagnostic Function with the HDS.

5. Check for DTCs.

Is DTC B2969 indicated?

YES -

Substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original climate control unit Service and Repair.

NO -

The system is OK at this time. Check for loose wires or poor connections on the driver's under-dash fuse/relay box and climate control unit circuit.